correct link to discord - SR WLED instead of AC WLED

readme.md

@@ -3,7 +3,7 @@
   <a href="https://github.com/atuline/WLED/releases"><img src="https://img.shields.io/github/release/Aircoookie/WLED.svg?style=flat-square"></a>
   <a href="https://raw.githubusercontent.com/Aircoookie/WLED/master/LICENSE"><img src="https://img.shields.io/github/license/Aircoookie/wled?color=blue&style=flat-square"></a>
   <a href="https://wled.discourse.group"><img src="https://img.shields.io/discourse/topics?colorB=blue&label=forum&server=https%3A%2F%2Fwled.discourse.group%2F&style=flat-square"></a>
-  <a href="https://discord.gg/KuqP7NE"><img src="https://img.shields.io/discord/473448917040758787.svg?colorB=blue&label=discord&style=flat-square"></a>
+  <a href="https://discord.gg/4CQRmfR"><img src="https://img.shields.io/discord/473448917040758787.svg?colorB=blue&label=discord&style=flat-square"></a>
   <a href="https://github.com/atuline/WLED/wiki"><img src="https://img.shields.io/badge/quick_start-wiki-blue.svg?style=flat-square"></a>
   <a href="https://github.com/Aircoookie/WLED-App"><img src="https://img.shields.io/badge/app-wled-blue.svg?style=flat-square"></a>
   <a href="https://gitpod.io/#https://github.com/atuline/WLED"><img src="https://img.shields.io/badge/Gitpod-ready--to--code-blue?style=flat-square&logo=gitpod"></a>